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-rw-r--r--pkg/tcpip/link/fdbased/endpoint.go15
-rw-r--r--pkg/tcpip/link/fdbased/endpoint_test.go21
-rw-r--r--pkg/tcpip/link/fdbased/mmap.go5
-rw-r--r--pkg/tcpip/link/fdbased/packet_dispatchers.go10
4 files changed, 31 insertions, 20 deletions
diff --git a/pkg/tcpip/link/fdbased/endpoint.go b/pkg/tcpip/link/fdbased/endpoint.go
index f80ac3435..255220d1a 100644
--- a/pkg/tcpip/link/fdbased/endpoint.go
+++ b/pkg/tcpip/link/fdbased/endpoint.go
@@ -430,8 +430,13 @@ func (e *endpoint) WritePacket(r *stack.Route, gso *stack.GSO, hdr buffer.Prepen
return rawfile.NonBlockingWrite3(e.fds[0], hdr.View(), payload.ToView(), nil)
}
-// WriteRawPacket writes a raw packet directly to the file descriptor.
-func (e *endpoint) WriteRawPacket(dest tcpip.Address, packet []byte) *tcpip.Error {
+// WriteRawPacket implements stack.LinkEndpoint.WriteRawPacket.
+func (e *endpoint) WriteRawPacket(packet buffer.VectorisedView) *tcpip.Error {
+ return rawfile.NonBlockingWrite(e.fds[0], packet.ToView())
+}
+
+// InjectOutobund implements stack.InjectableEndpoint.InjectOutbound.
+func (e *endpoint) InjectOutbound(dest tcpip.Address, packet []byte) *tcpip.Error {
return rawfile.NonBlockingWrite(e.fds[0], packet)
}
@@ -468,9 +473,9 @@ func (e *InjectableEndpoint) Attach(dispatcher stack.NetworkDispatcher) {
e.dispatcher = dispatcher
}
-// Inject injects an inbound packet.
-func (e *InjectableEndpoint) Inject(protocol tcpip.NetworkProtocolNumber, vv buffer.VectorisedView) {
- e.dispatcher.DeliverNetworkPacket(e, "" /* remote */, "" /* local */, protocol, vv)
+// InjectInbound injects an inbound packet.
+func (e *InjectableEndpoint) InjectInbound(protocol tcpip.NetworkProtocolNumber, vv buffer.VectorisedView) {
+ e.dispatcher.DeliverNetworkPacket(e, "" /* remote */, "" /* local */, protocol, vv, nil /* linkHeader */)
}
// NewInjectable creates a new fd-based InjectableEndpoint.
diff --git a/pkg/tcpip/link/fdbased/endpoint_test.go b/pkg/tcpip/link/fdbased/endpoint_test.go
index 04406bc9a..59378b96c 100644
--- a/pkg/tcpip/link/fdbased/endpoint_test.go
+++ b/pkg/tcpip/link/fdbased/endpoint_test.go
@@ -43,9 +43,10 @@ const (
)
type packetInfo struct {
- raddr tcpip.LinkAddress
- proto tcpip.NetworkProtocolNumber
- contents buffer.View
+ raddr tcpip.LinkAddress
+ proto tcpip.NetworkProtocolNumber
+ contents buffer.View
+ linkHeader buffer.View
}
type context struct {
@@ -92,8 +93,8 @@ func (c *context) cleanup() {
syscall.Close(c.fds[1])
}
-func (c *context) DeliverNetworkPacket(linkEP stack.LinkEndpoint, remote tcpip.LinkAddress, local tcpip.LinkAddress, protocol tcpip.NetworkProtocolNumber, vv buffer.VectorisedView) {
- c.ch <- packetInfo{remote, protocol, vv.ToView()}
+func (c *context) DeliverNetworkPacket(linkEP stack.LinkEndpoint, remote tcpip.LinkAddress, local tcpip.LinkAddress, protocol tcpip.NetworkProtocolNumber, vv buffer.VectorisedView, linkHeader buffer.View) {
+ c.ch <- packetInfo{remote, protocol, vv.ToView(), linkHeader}
}
func TestNoEthernetProperties(t *testing.T) {
@@ -293,11 +294,12 @@ func TestDeliverPacket(t *testing.T) {
b[i] = uint8(rand.Intn(256))
}
+ var hdr header.Ethernet
if !eth {
// So that it looks like an IPv4 packet.
b[0] = 0x40
} else {
- hdr := make(header.Ethernet, header.EthernetMinimumSize)
+ hdr = make(header.Ethernet, header.EthernetMinimumSize)
hdr.Encode(&header.EthernetFields{
SrcAddr: raddr,
DstAddr: laddr,
@@ -315,9 +317,10 @@ func TestDeliverPacket(t *testing.T) {
select {
case pi := <-c.ch:
want := packetInfo{
- raddr: raddr,
- proto: proto,
- contents: b,
+ raddr: raddr,
+ proto: proto,
+ contents: b,
+ linkHeader: buffer.View(hdr),
}
if !eth {
want.proto = header.IPv4ProtocolNumber
diff --git a/pkg/tcpip/link/fdbased/mmap.go b/pkg/tcpip/link/fdbased/mmap.go
index 8bfeb97e4..554d45715 100644
--- a/pkg/tcpip/link/fdbased/mmap.go
+++ b/pkg/tcpip/link/fdbased/mmap.go
@@ -169,9 +169,10 @@ func (d *packetMMapDispatcher) dispatch() (bool, *tcpip.Error) {
var (
p tcpip.NetworkProtocolNumber
remote, local tcpip.LinkAddress
+ eth header.Ethernet
)
if d.e.hdrSize > 0 {
- eth := header.Ethernet(pkt)
+ eth = header.Ethernet(pkt)
p = eth.Type()
remote = eth.SourceAddress()
local = eth.DestinationAddress()
@@ -189,6 +190,6 @@ func (d *packetMMapDispatcher) dispatch() (bool, *tcpip.Error) {
}
pkt = pkt[d.e.hdrSize:]
- d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, buffer.NewVectorisedView(len(pkt), []buffer.View{buffer.View(pkt)}))
+ d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, buffer.NewVectorisedView(len(pkt), []buffer.View{buffer.View(pkt)}), buffer.View(eth))
return true, nil
}
diff --git a/pkg/tcpip/link/fdbased/packet_dispatchers.go b/pkg/tcpip/link/fdbased/packet_dispatchers.go
index 7ca217e5b..9fb760891 100644
--- a/pkg/tcpip/link/fdbased/packet_dispatchers.go
+++ b/pkg/tcpip/link/fdbased/packet_dispatchers.go
@@ -118,9 +118,10 @@ func (d *readVDispatcher) dispatch() (bool, *tcpip.Error) {
var (
p tcpip.NetworkProtocolNumber
remote, local tcpip.LinkAddress
+ eth header.Ethernet
)
if d.e.hdrSize > 0 {
- eth := header.Ethernet(d.views[0])
+ eth = header.Ethernet(d.views[0][:header.EthernetMinimumSize])
p = eth.Type()
remote = eth.SourceAddress()
local = eth.DestinationAddress()
@@ -141,7 +142,7 @@ func (d *readVDispatcher) dispatch() (bool, *tcpip.Error) {
vv := buffer.NewVectorisedView(n, d.views[:used])
vv.TrimFront(d.e.hdrSize)
- d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv)
+ d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv, buffer.View(eth))
// Prepare e.views for another packet: release used views.
for i := 0; i < used; i++ {
@@ -271,9 +272,10 @@ func (d *recvMMsgDispatcher) dispatch() (bool, *tcpip.Error) {
var (
p tcpip.NetworkProtocolNumber
remote, local tcpip.LinkAddress
+ eth header.Ethernet
)
if d.e.hdrSize > 0 {
- eth := header.Ethernet(d.views[k][0])
+ eth = header.Ethernet(d.views[k][0])
p = eth.Type()
remote = eth.SourceAddress()
local = eth.DestinationAddress()
@@ -293,7 +295,7 @@ func (d *recvMMsgDispatcher) dispatch() (bool, *tcpip.Error) {
used := d.capViews(k, int(n), BufConfig)
vv := buffer.NewVectorisedView(int(n), d.views[k][:used])
vv.TrimFront(d.e.hdrSize)
- d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv)
+ d.e.dispatcher.DeliverNetworkPacket(d.e, remote, local, p, vv, buffer.View(eth))
// Prepare e.views for another packet: release used views.
for i := 0; i < used; i++ {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 05:43:59 +0000